Patents by Inventor Felix Fuernhammer

Felix Fuernhammer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8405157
    Abstract: The invention relates to a BiMOS semiconductor component having a semiconductor substrate wherein, in a first active region, a depletion-type MOS transistor is formed comprising additional source and drain doping regions of the first conductivity type extending in the downward direction past the depletion region into the body doping region while, in a second active region, (101), a bipolar transistor (100) is formed, the base of which comprises a body doping region (112) and the collector of which comprises a deep pan (110), wherein an emitter doping region (114) of the first conductivity type and a base connection doping region (118) of the second conductivity type are formed in the body doping region. The semiconductor element can be produced with a particularly low process expenditure because it uses the same basic structure for the doping regions in the bipolar transistor as are used in the MOS transistor of the same semiconductor component.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: March 26, 2013
    Assignee: X-FAB Semiconductor Foundries AG
    Inventors: Thomas Uhlig, Felix Fuernhammer, Christoph Ellmers
  • Patent number: 8222679
    Abstract: A semiconductor device with an integrated circuit on a semiconductor substrate comprises a Hall effect sensor in a first active region and a lateral high voltage MOS transistor in a second active region. The semiconductor device of the present invention is characterized in that the structure of the integrated Hall effect sensor is strongly related with the structure of a high-voltage DMOS transistor. The integrated Hall effect sensor is in some features similar to a per se known high-voltage DMOS transistor having a double RESURF structure. The control contacts of the Hall effect sensor correspond to the source and drain contacts of the high-voltage DMOS transistor. The semiconductor device of the present invention allows a simplification of the process integration.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: July 17, 2012
    Assignee: X-Fab Semiconductor Foundries AG
    Inventors: Thomas Uhlig, Felix Fuernhammer, Christoph Ellmers
  • Patent number: 8207031
    Abstract: Methods of forming, on a substrate, a first lateral high-voltage MOS transistor and a second lateral high-voltage MOS transistor complementary to said first one are disclosed. According to one embodiment, the method includes (1) providing a substrate of a first conductivity type including a first active region for said first lateral high-voltage MOS transistor and a second active region for said second lateral high-voltage MOS transistor and (2) forming at least one first doped region of the first conductivity type in the first active region and forming in the second active region a drain extension region of the second conductivity type extending from a substrate surface to an interior of the substrate, including a concurrent implantation of dopants through openings of one and the same mask into the first and second active regions.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: June 26, 2012
    Assignee: X-Fab Semiconductor Foundries AG
    Inventors: Christoph Ellmers, Thomas Uhlig, Felix Fuernhammer, Michael Stoisiek, Michael Gross
  • Publication number: 20110127583
    Abstract: A semiconductor device with an integrated circuit on a semiconductor substrate comprises a Hall effect sensor in a first active region and a lateral high voltage MOS transistor in a second active region. The semiconductor device of the present invention is characterized in that the structure of the integrated Hall effect sensor is strongly related with the structure of a high-voltage DMOS transistor. The integrated Hall effect sensor is in some features similar to a per se known high-voltage DMOS transistor having a double RESURF structure. The control contacts of the Hall effect sensor correspond to the source and drain contacts of the high-voltage DMOS transistor. The semiconductor device of the present invention allows a simplification of the process integration.
    Type: Application
    Filed: March 26, 2008
    Publication date: June 2, 2011
    Applicant: X-FAB SEMICONDUCTOR FOUNDRIES AG
    Inventors: Thomas Uhlig, Felix Fuernhammer, Christoph Ellmers
  • Publication number: 20100311214
    Abstract: The invention relates to a method for the production of a first lateral high-voltage MOS transistor and a second lateral high-voltage MOS transistor complimentary thereto on a substrate, wherein the first and second lateral high-voltage MOS transistors each have a conductivity type opposite a drift region, comprising the steps of providing a substrate of a first conductivity type comprising a first active region for the first lateral high-voltage MOS transistor and a second active region for the second lateral high-voltage MOS transistor, and the producing at least one first doping region of the first conductivity type in the first active region and, on the other hand, in the second active region, a drain extension region of the first conductivity type extending from the substrate surface to the interior of the substrate, which allows a simultaneous implantation of doping material in the first and second active regions through respective mask openings of one and the same mask.
    Type: Application
    Filed: March 26, 2008
    Publication date: December 9, 2010
    Applicant: X-FAB SEMICONDUCTOR FOUNDRIES
    Inventors: Christoph Ellmers, Thomas Uhlig, Felix Fuernhammer, Michael Stoisiek, Michael Gross
  • Publication number: 20100148255
    Abstract: For achieving an enhanced combination of a low on-resistance at a high break-through voltage a lateral high-voltage MOS transistor comprises a plurality of doped RESURF regions of the first conductivity type within the drift region, wherein the doped RESURF regions are separated from each other by drift region sections in a first lateral direction (y), which is parallel to a substrate surface and is orthogonal to a connecting line from the source region to the drain region, and also in a depth direction, which is orthogonal to the substrate surface, such that in each of said two directions an alternating arrangement of regions of the first and second conductivity types is provided.
    Type: Application
    Filed: March 26, 2008
    Publication date: June 17, 2010
    Inventors: Felix Fuernhammer, Christoph Ellmers, Thomas Uhlig, Michael Stoisiek
  • Publication number: 20100148276
    Abstract: The invention relates to a BiMOS semiconductor component having a semiconductor substrate wherein, in a first active region, a depletion-type MOS transistor is formed comprising additional source and drain doping regions of the first conductivity type extending in the downward direction past the depletion region into the body doping region while, in a second active region, (101), a bipolar transistor (100) is formed, the base of which comprises a body doping region (112) and the collector of which comprises a deep pan (110), wherein an emitter doping region (114) of the first conductivity type and a base connection doping region (118) of the second conductivity type are formed in the body doping region. The semiconductor element can be produced with a particularly low process expenditure because it uses the same basic structure for the doping regions in the bipolar transistor as are used in the MOS transistor of the same semiconductor component.
    Type: Application
    Filed: March 26, 2008
    Publication date: June 17, 2010
    Applicant: X-FAB SEMICONDUCTOR FOUNDRIES
    Inventors: Thomas Uhlig, Felix Fuernhammer, Christoph Ellmers